San Martin · Factory brand · China

San Martin SN0105 36mm (VH31)

Ref. SN0105-G-XB · Pilot

From $119
  • Seiko VH31B
  • 36 mm × 10.5 mm
  • K1 mineral crystal
  • 100 m water resistance

Where to buy

Movement

Type
Quartz
Tier
Mid
Complications
Time only
Frequency
n/a
Power reserve
n/a
Hacking
n/a
Accuracy (factory)
-15 / +15 s/month

Case

Diameter
36 mm
Lug to lug
46 mm
Thickness
10.5 mm
Lug width
18 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Push/pull
Case back
Solid, screw-down
Bezel
Fixed
Finishing
Brushed caseback

Crystal & dial

Crystal
K1 mineral
Shape
—
Anti-reflective
Yes (side not stated)
Lume
SLN C3 (green) and BGW-9 (blue) on hands and markers

Bracelet

Bracelet
Not offered

Straps

Strap 1
Nylon, One-piece nylon strap, 18mm, 316L buckle

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street119 USD$1192026-10-24link

Variants

NameReferenceDial
Matte BlackSN0105-G-XBblack

About this entry

93% of key specs known. Missing: hardening.

The 36mm SN0105 with a Seiko VH31 sweep-seconds quartz; see sn0105-ronda-6004 for the SN0105-G-XA in a near-identical case (45.8mm lug-to-lug, 10mm) with a small-seconds Ronda. The title calls the VH31 a "Mechaquartz" movement, but the spec list itself says "Sweep Second Quartz Series, 2 Jewels", which is what the VH31 is. Brand specs: 316L, 36mm, 46mm lug-to-lug, 10.5mm (not stated whether that includes the crystal), 18mm lugs, K1 mineral glass with AR coating (side not stated), matte black dial, luminous hands, SLN C3 green plus BGW-9 blue lume on hands and markers, push-pull crown with 3D hexagon logo, brushed screw-down caseback, one-piece nylon strap 18mm with a 316L buckle, 100m, about 53g (not stated what was weighed). Sold with or without logo at $119. The solid caseback and fixed bezel are from photos. Both options showed "Out of stock" on 2026-10-25, so production status is unknown.

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

Sources