San Martin · Factory brand · China

San Martin SN033 39.5mm (YN55A)

Ref. SN033-C · In production · Pilot

From $218 to $258
  • Epson YN55A
  • 39.5 mm × 11.95 mm
  • Sapphire crystal
  • 100 m water resistance

Where to buy

Movement

Type
Automatic
Tier
Entry
Complications
Hours, Minutes, Seconds
Frequency
21,600 bph
Power reserve
40 h
Hacking
Yes
Accuracy (factory)
—

Case

Diameter
39.5 mm
Lug to lug
48.5 mm
Thickness
11.95 mm
Lug width
—
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
Fixed
Finishing
Brushed caseback

Crystal & dial

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

Bracelet & clasp

Style
Jubilee
Links per row
5
Solid end links
—
Solid links
—
Link attachment
—
Taper
—
Quick release
—
Half links
—
Clasp
—
Micro-adjust
—
Diver extension
—

Straps

Strap 1
Leather, quick release, Suede-look leather, 316L buckle with San Martin logo

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
Salmon dialsteel braceletStreet258 USD$2582026-10-24link
Salmon dialleather strapStreet218 USD$2182026-10-24link
Green dialsteel braceletStreet258 USD$2582026-10-24link
Green dialleather strapStreet218 USD$2182026-10-24link
Silver dialsteel braceletStreet258 USD$2582026-10-24link
Silver dialleather strapStreet218 USD$2182026-10-24link
Purple dialsteel braceletStreet258 USD$2582026-10-24link
Purple dialleather strapStreet218 USD$2182026-10-24link

Variants

NameReferenceDial
Salmon dialSN033-Csalmon
Green dialSN033-Cgreen
Silver dialSN033-Csilver
Purple dialSN033-Cpurple

About this entry

68% of key specs known. Missing: lug width, weight, hardening, end links, link attachment, clasp micro-adjust.

The SN033 is a pilot-style case with a carved coin-edge steel bezel and an onion crown, sold as the 38.5mm SN033-G (YN55A, sn033-38-5mm-yn55a), the 38.5mm SN033-G2 (NH35, sn033-nh35) and the 39.5mm SN033-C (YN55A, sn033-39-5mm-yn55a). The SN033-C quotes a 39.5mm diameter against 38.5mm for the SN033-G and G2, a difference beyond hand-measuring noise, so it is kept as its own model. Brand specs for the SN033-C (written "SN0033-C" in its spec list): YN55 (recorded as the Epson YN55A, as on the other San Martin YN55 models), 316L, 39.5mm, 48.5mm lug-to-lug, 11.95mm including crystal, carved coin-pattern 316L bezel, sapphire with AR coating (side not stated), green, salmon, silver or purple dial with applied indices, lumed bar hands, "BGW-X1" blue lume on hands and markers, screw-down onion crown, brushed screw-down caseback, quick-release leather strap with logo buckle, 100m. Lug width and weight are not stated. The photos show Chinese-numeral hour markers; the boxed 四 at 4 o'clock is a marker, not a date window, so complications are time only. The steel bracelet ($258; $218 on leather) isn't described; the photos show a five-link jubilee-style bracelet. Several variations (salmon and silver on leather, green and salmon on the bracelet) were in stock on 2026-10-24.

Last verified: 2026-10-24. Edit or correct this entry.

Sources