San Martin · Factory brand · China

San Martin SN0148 GB 40mm

Ref. SN0148-GB · In production · Diver

From $453 to $493
  • Miyota 9015
  • 40 mm × 11.65 mm
  • Sapphire crystal
  • 200 m water resistance

Where to buy

Movement

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

Case

Diameter
40 mm
Lug to lug
45 mm
Thickness
11.65 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
200 m
Crown
Screw-down
Case back
Display, screw-down
Bezel
Unidirectional, 120 clicks, 60-minute dive, ceramic insert, lumed

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW-X1 (blue) on bezel, hands and markers

Bracelet & clasp

Style
Jubilee
Links per row
5
Solid end links
—
Solid links
Yes
Link attachment
—
Taper
—
Quick release
—
Half links
—
Clasp
—
Micro-adjust
On-the-fly, "Fly Adjustable Clasp"
Diver extension
—

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
Gradient Black—Street453 USD$4532026-10-24link
Gradient Blue—Street453 USD$4532026-10-24link
Gradient Green—Street453 USD$4532026-10-24link
Gradient Orange Red—Street453 USD$4532026-10-24link
Black Dial, Black Bezel—Street453 USD$4532026-10-24link
White Luminous Dial, Black Bezel—Street493 USD$4932026-10-24link
White Luminous Dial, White Bezel—Street493 USD$4932026-10-24link

Variants

NameReferenceDialBezel
Gradient BlackSN0148-GBgradient black—
Gradient BlueSN0148-GBgradient blue—
Gradient GreenSN0148-GBgradient green—
Gradient Orange RedSN0148-GBgradient orange red—
Black Dial, Black BezelSN0148-GB2blackblack ceramic
White Luminous Dial, Black BezelSN0148-GB2white (full-lume)black ceramic
White Luminous Dial, White BezelSN0148-GB2white (full-lume)white ceramic

About this entry

84% of key specs known. Missing: hardening, end links, link attachment.

The SN0148-GB ("New Watch Case") and SN0148-GB2 listings sell the same 40mm case and movement, so they are one model. It is kept apart from the SN0148-G and G1 (sn0148-40mm): same 40mm and Miyota 9015, but 45mm instead of 49.5mm lug-to-lug and 11.65mm instead of 11.35mm thick, and the brand calls it a new case. Brand specs (identical on both listings apart from dial, caseback and weight): Miyota 9015, 316L, 40mm, 45mm lug-to-lug, 11.65mm including crystal, 20mm lugs, sapphire with AR coating (side not stated), 120-click unidirectional ceramic bezel, lumed bar hands, BGW-X1 blue lume on bezel, hands and markers, screw-down crown with 3D hexagon logo, 200m, five-link solid bracelet (about 180mm on the GB) with the fly adjustable clasp (recorded as on-the-fly, as on the other San Martin files with this clasp; positions and range not stated). Caseback: the GB spec says screw-down display caseback; the GB2 spec says solid, but the GB2 listing's own caseback photo shows the same display window, so display is recorded. Weight: 150.7g for the GB and about 138g for the GB2 (not stated what was weighed); the GB figure is recorded. The GB has gradient black, green, blue or orange-red dials with colour-matched bezels; the GB2 ("Enamel/Luminous Dial") has a black dial with black bezel or a white dial with black or white bezel, and its lume photo shows the white dial glowing in full (which dial is the enamel one is not stated). The date window at 3, the jubilee style and the 60-minute bezel scale are from photos. Prices: GB $453 for any colour; GB2 $453 with the black dial, $493 with the white dial. Stock on 2026-10-25: GB blue and black in stock, green and orange red sold out; all three GB2 options in stock.

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

Sources