San Martin · Factory brand · China

San Martin SN0113 38mm

Ref. SN0113-G · Field

Design reference: Omega Railmaster (1957)

From $238 to $258
  • Seiko NH35A
  • 38 mm × 13 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Hours, Minutes, Seconds
Frequency
21,600 bph
Power reserve
41 h
Hacking
Yes
Accuracy (factory)
-20 / +40 s/day

Case

Diameter
38 mm
Lug to lug
47 mm
Thickness
13 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
Domed
Anti-reflective
Yes (side not stated)
Lume
C3 green on markers and hands, BGW9 blue on the 3/6/9/12 numerals

Bracelet & clasp

Style
Oyster
Links per row
3
Solid end links
—
Solid links
Yes
Link attachment
—
Taper
20 → 18 mm
Quick release
—
Half links
—
Clasp
—
Micro-adjust
—
Diver extension
—

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
G matte black dial—Street238 USD$2382026-10-24link
G1 matte black dial—Street258 USD$2582026-10-24link

Variants

NameReferenceDialConfiguration
G matte black dialSN0113-Gmatte blackbracelet with butterfly clasp
G1 matte black dialSN0113-G1matte blackbracelet with Fly Adjustable BK1642 folding clasp

About this entry

79% of key specs known. Missing: hardening, end links, link attachment, clasp micro-adjust.

Merges the SN0113-G and the "New SN0113-G1 Version", which quote the same specs except the clasp. Brand specs: 316L, 38mm, 47mm lug-to-lug, 13mm (not stated whether it includes the crystal), 20mm lugs, "bubble convex" sapphire with AR coating (side not stated), polished steel bezel (fixed, from photos), matte black dial, lumed arrow hands, "retro" SLN C3 green lume on hands and markers with BGW-9 blue on the 3/6/9/12 numerals, screw-down crown with hexagon logo, brushed screw-down caseback, 100m, about 132g (not stated what was weighed). Bracelet: three-link solid 316L, 20mm tapering to 18mm (oyster style in the photos). The G has a butterfly clasp ($238); the G1 has the Fly Adjustable BK1642 folding clasp with safety ($258, on-the-fly), so the clasp is recorded per variant in `configuration`. The NH35 has a date but the photos show no date window, so complications are time only. inspired_by is read from the design (38mm, 3-6-9-12 numerals with triangle markers, arrow hands, and the brand's "Classic 1957 Retro" naming); the brand does not name it. Both listings are simple products, but each carries a leftover "Dial Design" attribute ("Dial A with ST3621 Movement", "Dial B with NH35 Movement") that offers no choice; the NH35 named in the spec text is recorded. The store files both listings under its SN030 and SN0107 categories as well as SN0113; the watch is unrelated to the SN030 pilot. The SN0113-G listing links to an AliExpress listing that could not be checked (bot check). Both listings showed "Out of stock" on 2026-10-25, so production status is unknown.

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

Sources