San Martin · Factory brand · China

San Martin SN018 40mm

Ref. SN018 · Chronograph, Racing

Design reference: Rolex Cosmograph Daytona

From $229 to $249
  • Quartz
  • 40 mm × 12 mm
  • Sapphire crystal
  • 100 m water resistance

Where to buy

Movement

Caliber
Quartz, caliber not identified
Type
Quartz
Tier
—
Complications
Hours, Minutes, Small seconds, Chronograph, Date
Frequency
—
Power reserve
—
Hacking
—
Accuracy (factory)
—

Case

Diameter
40 mm
Lug to lug
49 mm
Thickness
12 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
tachymeter, ceramic insert

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW-9 blue

Bracelet

Bracelet
—

Straps

Strap 1
Leather, steel pin buckle
Strap 2
Rubber, white and black dials only; steel pin buckle

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
Blue dialsteel braceletStreet249 USD$2492026-10-24link
Blue dialleather strapStreet229 USD$2292026-10-24link
Green dialsteel braceletStreet249 USD$2492026-10-24link
Green dialleather strapStreet229 USD$2292026-10-24link
White panda dialrubber strapStreet249 USD$2492026-10-24link
White panda dialleather strapStreet229 USD$2292026-10-24link
Black reverse-panda dialrubber strapStreet249 USD$2492026-10-24link
Black reverse-panda dialleather strapStreet229 USD$2292026-10-24link

Variants

NameReferenceDialBezel
Blue dialSN018blue with silver subdialsblue ceramic tachymeter
Green dialSN018green with silver subdialsgreen ceramic tachymeter
White panda dialSN018white with black subdialsblack ceramic tachymeter
Black reverse-panda dialSN018black with white subdialsblack ceramic tachymeter

About this entry

73% of key specs known. Missing: movement, weight, hardening, bracelet offered.

Brand specs: "Swiss Ronda 5040" quartz chronograph, 316L, 40mm without crown, 49mm lug-to-lug, 12mm including crystal, 20mm lugs, sapphire with AR coating (side not stated), ceramic bezel, enamel dial, lumed steel hands, BGW-9 blue lume, 7mm screw-in crown, screw-in caseback, leather or rubber strap with 316L pin buckle, 100m. The brand does not say which 5040 version is used. Caliber Corner lists the 5040.B with a big date and the 5040.D with a date window between 4 and 5 (both 28.6mm, 4.4mm high, small seconds, 30-minute and 10-hour counters); Ronda's own caliber pages served a bot check, so the other versions weren't checked. The photos show three subdials and a pointer date read on a 1-31 track at the dial edge, with no date window, which matches neither, so the caliber is left unidentified and the complications are recorded from the photos. The listing offers a stainless steel band for the blue and green dials ($249) and a rubber strap for the white and black ($249), and leather for all four ($229); the bracelet is not described. The tachymeter ("units per hour") bezel scale is from photos. Inspired_by is read from the design (tachymeter bezel, three-register panda and reverse-panda dials); the brand does not name it. Every variation showed "Out of stock" on 2026-10-24, so production status is unknown.

Last verified: 2026-10-24. Edit or correct this entry.

Sources