San Martin · Factory brand · China

San Martin SN0144 39mm (Miyota 90S5)

Ref. SN0144-CG · In production · Dress

San Martin SN0144-CG1 39mm in dark blue and blue-green with Chinese numeral markers on steel bracelets
Photo: San Martin
  • San Martin SN0144-CG with Chinese numeral markers in four dial colours
  • San Martin SN0144-CG2 with copper-tone coin-pattern dial
  • San Martin SN0144-CG2-9 in brown and green
  • San Martin SN0144-CG4 with black and white mother-of-pearl dials
  • San Martin SN0144-CG5 with white and salmon spark-pattern dials
  • San Martin SN0144-CG7 with silver white, black, light blue and dark blue enamel dials
  • San Martin SN0144-GX-4 mother-of-pearl dials in black, blue, green and purple on 5-link bracelets
  • San Martin SN0144-GX-6 Year of the Snake in gradient blue, red, green, purple and black
From $368 to $508
  • Miyota 90S5
  • 39 mm × 10.1 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Type
Automatic
Tier
Mid
Complications
Hours, Minutes, Seconds
Frequency
28,800 bph
Power reserve
42 h
Hacking
Yes
Accuracy (factory)
-10 / +30 s/day

Case

Diameter
39 mm
Lug to lug
46.5 mm
Thickness
10.1 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
—
Bezel
Fixed

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW-X1 (blue) on markers and hands; markers only on the CG4 and CG5

Bracelet & clasp

Style
—
Links per row
—
Solid end links
—
Solid links
Yes
Link attachment
—
Taper
20 → 16 mm
Quick release
—
Half links
—
Clasp
—
Micro-adjust
On-the-fly, "New Fly Adjustable Clasp"
Diver extension
—

Weight

Head only
—
On bracelet
—
On strap
—
Stated weight (basis not given)
133.5 g

Prices

VariantConfigurationTypePriceUSDAs ofSource
CG Blue—Street368 USD$3682026-10-24link
CG Dark Blue—Street368 USD$3682026-10-24link
CG Dark Brown—Street368 USD$3682026-10-24link
CG Blue-Green—Street368 USD$3682026-10-24link
CG1 Dark Blue—Street428 USD$4282026-10-24link
CG1 Blue-Green—Street428 USD$4282026-10-24link
CG2 Coin Pattern—Street428 USD$4282026-10-24link
CG2-9 Green—Street458 USD$4582026-10-24link
CG2-9 Brown—Street458 USD$4582026-10-24link
CG4 Black MOP—Street428 USD$4282026-10-24link
CG4 White MOP—Street428 USD$4282026-10-24link
CG5 White Spark Pattern—Street428 USD$4282026-10-24link
CG5 Salmon Spark Pattern—Street428 USD$4282026-10-24link
CG7 Black Enamel—Street428 USD$4282026-10-24link
CG7 Silver White Enamel—Street428 USD$4282026-10-24link
CG7 Light Blue Enamel—Street428 USD$4282026-10-24link
CG7 Dark Blue Enamel—Street428 USD$4282026-10-24link
GX-4 Blue MOP3-link braceletStreet418 USD$4182026-10-24link
GX-4 Blue MOP5-link braceletStreet428 USD$4282026-10-24link
GX-4 Black MOP3-link braceletStreet418 USD$4182026-10-24link
GX-4 Black MOP5-link braceletStreet428 USD$4282026-10-24link
GX-4 Green MOP3-link braceletStreet418 USD$4182026-10-24link
GX-4 Green MOP5-link braceletStreet428 USD$4282026-10-24link
GX-4 Purple MOP3-link braceletStreet418 USD$4182026-10-24link
GX-4 Purple MOP5-link braceletStreet428 USD$4282026-10-24link
GX-6 Gradient Blue—Street508 USD$5082026-10-24link
GX-6 Gradient Red—Street508 USD$5082026-10-24link
GX-6 Gradient Green—Street508 USD$5082026-10-24link
GX-6 Gradient Purple—Street508 USD$5082026-10-24link
GX-6 Gradient Black—Street508 USD$5082026-10-24link

Variants

NameReferenceDialStatus
CG BlueSN0144-CGblueDiscontinued
CG Dark BlueSN0144-CGdark blueDiscontinued
CG Dark BrownSN0144-CGdark brownDiscontinued
CG Blue-GreenSN0144-CGblue-greenDiscontinued
CG1 Dark BlueSN0144-CG1dark blue—
CG1 Blue-GreenSN0144-CG1blue-green—
CG2 Coin PatternSN0144-CG2coin-pattern (copper tone in photos)—
CG2-9 GreenSN0144-CG2-9green—
CG2-9 BrownSN0144-CG2-9brown—
CG4 Black MOPSN0144-CG4black mother-of-pearl—
CG4 White MOPSN0144-CG4white mother-of-pearl—
CG5 White Spark PatternSN0144-CG5white spark-pattern—
CG5 Salmon Spark PatternSN0144-CG5salmon spark-pattern—
CG7 Black EnamelSN0144-CG7black enamel—
CG7 Silver White EnamelSN0144-CG7silver white enamel—
CG7 Light Blue EnamelSN0144-CG7light blue enamel—
CG7 Dark Blue EnamelSN0144-CG7dark blue enamel—
GX-4 Blue MOPSN0144-GX-4blue mother-of-pearl—
GX-4 Black MOPSN0144-GX-4black mother-of-pearl—
GX-4 Green MOPSN0144-GX-4green mother-of-pearl—
GX-4 Purple MOPSN0144-GX-4purple mother-of-pearl—
GX-6 Gradient BlueSN0144-GX-6gradient blue guillocheLimited
GX-6 Gradient RedSN0144-GX-6gradient red guillocheLimited
GX-6 Gradient GreenSN0144-GX-6gradient green guillocheLimited
GX-6 Gradient PurpleSN0144-GX-6gradient purple guillocheLimited
GX-6 Gradient BlackSN0144-GX-6gradient black guillocheLimited

About this entry

79% of key specs known. Missing: hardening, bracelet links, end links, link attachment.

The 39mm SN0144 with the Miyota 90S5, sold as nine listings that the brand files under SN0144; each listing's code is kept as the variant reference. All quote the same case: 316L, 39mm, 46.5mm lug-to-lug, 10.1mm including crystal, 20mm lugs, sapphire with AR coating (side not stated), stainless steel bezel (fixed and smooth in the photos), screw-down crown with hexagon logo, screw-down caseback, 100m, solid 316L bracelet with the "New Fly Adjustable Clasp" (on-the-fly; positions and range not stated). The 16mm taper is the clasp width stated on the CG2, CG4, CG5 and CG7 listings, which also give the bracelet as about 190mm (CG2) or 195mm long. Weight is about 133.5g on most listings (not stated what was weighed), 134.3g on the CG2 and 135.4g on the GX-6; the GX-4 gives none. CG dials (CG, CG1, CG2, CG2-9, CG4, CG5) carry Chinese numeral markers in the photos and a San Martin text logo; the CG7 enamel, GX-4 mother-of-pearl and GX-6 guilloche dials have applied indices and the hexagon logo. Lume is BGW-X1 blue on the markers, and on the bar hands except on the CG4 and CG5, whose diamond-shaped hands are not described as lumed. The 90S5 is Miyota's open-heart caliber, but no SN0144 dial in the photos shows an aperture or a date, so complications are time only. The CG listing says a new version with a new case "but no much different look" (the CG1) replaces it once sold out; the CG was sold out and the CG1 quotes identical dimensions, so the CG dials are kept here as discontinued variants. The GX-6 Year of the Snake edition (gold hands) has a screw-down sapphire display caseback with a BGW-X1 lumed snake logo instead of the solid back, so caseback type is left blank; the brand calls it a limited edition but gives no number. The GX-4 is offered on a 3-link ($418) or 5-link ($428) bracelet; the CG listings are photographed on a 5-link bracelet and the GX-6 on a 3-link one. Prices on 2026-10-24: CG $368, CG1, CG2, CG4, CG5 and CG7 $428, CG2-9 $458, GX-6 $508. Stock on 2026-10-25: CG and CG2 sold out; GX-4 only green in stock; GX-6 red and green sold out; the rest in stock. The CG listing also says Miyota 9 series movements are in short supply. See sn0144-36mm-90s5 for the 36mm CGS and the sn0144 Miyota 9015, 9075 and 9132 files for the other builds.

Last verified: 2026-10-25. Edit or correct this entry.

Sources