San Martin · Factory brand · China

San Martin SN0107 38mm (NH35)

Ref. SN0107-G · Explorer

Design reference: Rolex Explorer

From $258 to $268
  • Seiko NH35A
  • 38.5 mm × 12.3 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
38.5 mm
Lug to lug
46.7 mm
Thickness
12.3 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
Fixed
Finishing
Vertical brushed case, circular satin-brushed bezel and caseback

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW9 (SLN C3 option on the SN0107-G)

Bracelet & clasp

Style
Oyster
Links per row
3
Solid end links
—
Solid links
Yes
Link attachment
—
Taper
20 → 16 mm
Quick release
—
Half links
—
Clasp
Fold-over
Micro-adjust
Tool (pin holes), 4 positions
Diver extension
—

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
G black dial, BGW9 lume—Street258 USD$2582026-10-24link
G black dial, C3 lume—Street258 USD$2582026-10-24link
G black dial, applied logo and markers—Street268 USD$2682026-10-24link
G3 gradient dial—Street268 USD$2682026-10-24link
G4 enamel dial—Street268 USD$2682026-10-24link
G5 matte dial, snowflake hands—Street268 USD$2682026-10-24link
G6 enamel dial, snowflake hands—Street268 USD$2682026-10-24link

Variants

NameReferenceDial
G black dial, BGW9 lumeSN0107-Gblack
G black dial, C3 lumeSN0107-Gblack
G black dial, applied logo and markersSN0107-Gblack
G3 gradient dialSN0107-G3gradient blue, green or brown
G4 enamel dialSN0107-G4enamel black, blue or green
G5 matte dial, snowflake handsSN0107-G5matte white, matte brown or mint green
G6 enamel dial, snowflake handsSN0107-G6enamel black, blue or green

About this entry

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

Merges the five NH35 listings of the 38mm SN0107 ("Vintage Explore Climbing Series"): G, G3, G4, G5 and G6. Brand specs, the same on all five except where noted: 316L, 38mm case with a 38.5mm bezel (the larger figure is recorded), 46.7mm lug-to-lug, 12.3mm (12mm on the G6, treated as the same case; not stated whether it includes the crystal), 20mm lugs, sapphire with AR coating (side not stated; "domed" on the G and G4, "top hat" on the G3, G5 and G6, so no shape is recorded), circular satin-brushed steel bezel, screw-down crown with hexagon logo, circular-brushed screw-down caseback, 100m, about 135g (not stated what was weighed). Bracelet: solid 316L, brushed, 20mm tapering to 16mm (three-link oyster style in the photos), folding clasp with safety and "4 Fine-tuning Function", recorded as four micro-adjust holes as on the published SN0106, whose listing uses the same clasp wording. The G has a black 3-6-9 dial with arrow hands, printed logo and markers with or without the logo ($258, SLN C3 or BGW9 lume) or a newer version with applied hexagon logo and markers ($268, BGW9). The G3 (gradient), G4 (enamel, printed logo, applied markers), G5 (matte, snowflake hands) and G6 (enamel gilt, snowflake hands) are $268 with BGW9 lume. The NH35 has a date but no dial shows a date window, so complications are time only; the solid caseback and fixed bezel are from photos. inspired_by is read from the design (3-6-9 Explorer-style dial and the "Explore" naming); the brand does not name it. Every variation of all five listings showed "Out of stock" on 2026-10-25, so production status is unknown. The 36mm SN0107-G-X is a separate model (sn0107-36mm-nh35); the PT5000 and SW200 versions (SN0107-B, B4) quote a thinner 10.8mm case on a jubilee bracelet and are separate models.

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

Sources