San Martin · Factory brand · China

San Martin SN0101 38mm (VK64)

Ref. SN0101-G-JS-1 · Chronograph

San Martin SN0101-G-JS-1 chronograph with sunray light blue Arabic-numeral dial
Photo: San Martin
  • San Martin SN0101-G-JS-1 chronograph with sunray orange dial
  • San Martin SN0101-G-JS-1 chronograph with sunray green dial
  • San Martin SN0101-G-JS-1 chronograph with sunray navy blue dial
  • San Martin SN0101-G-JS-1 chronograph with white dial
  • San Martin SN0101-G-JS-2 chronograph with sunray light blue Roman-numeral dial
  • San Martin SN0101-G-JS-2 chronograph with sunray orange Roman-numeral dial
  • San Martin SN0101-G-JS-2 chronograph with sunray green Roman-numeral dial
  • San Martin SN0101-G-JS-2 chronograph with sunray navy blue Roman-numeral dial
  • San Martin SN0101-G-JS-2 chronograph with white Roman-numeral dial
From $199
  • Seiko VK64A
  • 38 mm × 11.5 mm
  • Sapphire crystal
  • 50 m water resistance

Movement

Type
Meca-quartz
Tier
Mid
Complications
Hours, Minutes, Chronograph
Frequency
n/a
Power reserve
n/a
Hacking
n/a
Accuracy (factory)
-20 / +20 s/month

Case

Diameter
38 mm
Lug to lug
46.8 mm
Thickness
11.5 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
50 m
Crown
Push/pull
Case back
Solid, screw-down
Bezel
Fixed
Finishing
Polished bezel, brushed caseback

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
—

Bracelet

Bracelet
Not offered

Straps

Strap 1
Leather, quick release, 20mm tapering to 18mm, 316L buckle with San Martin logo

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street199 USD$1992026-10-24link
Roman Sunray Light Blue—Street199 USD$1992026-10-24link
Roman Sunray Orange—Street199 USD$1992026-10-24link
Roman Sunray Green—Street199 USD$1992026-10-24link
Roman Sunray Navy Blue—Street199 USD$1992026-10-24link
Roman White—Street199 USD$1992026-10-24link

Variants

NameReferenceDial
Arabic Sunray Light BlueSN0101-G-JS-1light blue
Arabic Sunray OrangeSN0101-G-JS-1orange
Arabic Sunray GreenSN0101-G-JS-1green
Arabic Sunray Navy BlueSN0101-G-JS-1navy blue
Arabic WhiteSN0101-G-JS-1white
Roman Sunray Light BlueSN0101-G-JS-2light blue
Roman Sunray OrangeSN0101-G-JS-2orange
Roman Sunray GreenSN0101-G-JS-2green
Roman Sunray Navy BlueSN0101-G-JS-2navy blue
Roman WhiteSN0101-G-JS-2white

About this entry

87% of key specs known. Missing: hardening, lume.

Merges two listings with identical specs and price ($199): SN0101-G-JS-1 with an Arabic-numeral dial and SN0101-G-JS-2 with Roman numerals, each in sunray light blue, orange, green, navy blue or white (JS-2 is currently offered with logo only; JS-1 with or without). The brand writes the movement as "VK6430"; it is recorded as the Seiko VK64, whose layout (60-minute counter at 9, 24-hour indicator at 3) matches the dial photos. The listing's own function text ("small seconds at 9", "24-minute counter at 3") is garbled and contradicts the photos. Brand specs: 316L, 38mm, 46.8mm lug-to-lug, 11.5mm (not stated whether that includes the crystal), 20mm lugs, sapphire with AR coating (side not stated), polished steel bezel with a tachymeter scale on the dial, push-pull crown with hexagon logo, brushed screw-down caseback, quick-release leather strap 20mm tapering to 18mm with a 316L logo buckle, 50m, about 60g (not stated what was weighed). Lume is not mentioned. The VK64 has a date but the photos show no date window, so complications are hours, minutes and chronograph (the 24-hour indicator has no field). Same case dimensions as the SN0101 dress watch apart from 0.5mm more thickness, but it is a separate model by movement. Every variation of 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