San Martin · Factory brand · China

San Martin SN036 42.5mm (NH35)

Ref. SN036-G-B · Diver

From $258
  • Seiko NH35A
  • 42.5 mm × 13.8 mm
  • Sapphire crystal
  • 300 m water resistance

Where to buy

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
42.5 mm
Lug to lug
48.5 mm
Thickness
13.8 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
300 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
Unidirectional, 60-minute dive, ceramic insert
Helium valve
Yes

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW9 (blue) on hands and markers

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
Fold-over
Micro-adjust
On-the-fly, "Fly Adjustable Clasp"
Diver extension
—

Weight

Head only
—
On bracelet
175 g
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street258 USD$2582026-10-24link

Variants

NameReferenceDialBezel
Gradient brown dial, orange bezelSN036-G-Bgradient brownorange
Gradient blue dial, black bezelSN036-G-Bgradient blueblack
Gradient green dial, green bezelSN036-G-Bgradient greengreen

About this entry

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

The "new updated" SN036 with a helium escape valve and ceramic bezel; see sn036-8215 for the SN036 family. Brand specs (written "SN0036-G-B" in the spec list): NH35, 316L, 42.5mm, 48.5mm lug-to-lug, 13.8mm (not stated whether including crystal), 20mm lugs, sapphire with AR coating (side not stated), unidirectional ceramic bezel in orange, black or green with a luminous 12 o'clock marker, gradient blue, green or brown dial, broad arrow luminous hands, BGW-9 blue lume on hands and markers, screw-down crown with 3D hexagon logo, screw-down caseback, solid 316L bracelet 20mm tapering to 18mm, "New Fly Adjustable Clasp" (recorded as on-the-fly micro-adjust, as for the brand's other models with this clasp; photos show a ratcheting extension in the clasp), 300m, about 175g (read as on the bracelet, the only option). The diameter is the brand's figure but may include the crown: the SN0036-C listing quotes 41mm without crown and 42.5mm with it for a case with the same 48.5mm lug-to-lug, helium valve and bezel, so this case may measure about 41mm. Bracelet style and link count and the solid caseback are from photos. The movement has a date but photos show no date window, so complications are time only. Every variation showed "Out of stock" on 2026-10-25, so production status is unknown.

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

Sources