Watch Almanac
Christopher Ward

C60 Trident Pro 300 40mm

Ref. C60-40ADA31S0KK1-B0

Case diameter
40 mm
Manufacturer spec
Lug-to-lug
47.5 mm
Manufacturer spec
Thickness
11.3 mm
Manufacturer spec
Lug width
20 mm
Manufacturer spec

Retail price $1,320 (US, Oct 2026)

Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 47.5 mm

How the C60 Trident Pro 300 40mm wears

Its lugs add 7.5 mm to the 40 mm case, close to the 7.1 mm typical across the almanac, so its diameter is a fair guide to how it wears.

On our fit model it sits best on wrists from 6.75" to 8" (17.1–20.3 cm); below 6.75" the lugs start to reach the edge of the wrist.

At 11.3 mm thick it is slimmer than 96% of the 79 other dive watches we've measured, so it slides under a cuff more easily than most.

Its 20 mm lug width is one of the most common strap sizes; 104 other watches here share it, so aftermarket straps are easy to find.

Will the C60 Trident Pro 300 40mm fit your wrist?

With a 47.5 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

WristFlat width (est.)Fit
6"47.2 mmLugs overhang
6.5"51.2 mmSnug, lugs near the edge
7"55.1 mmIdeal fit
7.5"59.1 mmIdeal fit
8"63 mmIdeal fit

Specifications

Reference
C60-40ADA31S0KK1-B0
Collection
C60 Trident
Status
In production
Case material
stainless steel
Crystal
sapphire, anti-reflective
Water resistance
300 m
Bezel
unidirectional, zirconia ceramic insert
Dial
black
Strap / bracelet
Bader steel bracelet with micro-adjust clasp
Weight
68 g
Style
Dive

Movement

Caliber
Sellita SW200-1
Type
automatic
Power reserve
38 hours
Frequency
28,800 vph (4 Hz)
Jewels
26
Accuracy
-5/+12 s/day (Christopher Ward tolerance)

2 other watches use the Sellita SW200-1

Takes 20 mm straps. See other 20 mm watches and straps.

More C60 Trident references

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 20 mm lug width

All 20 mm watches

These take the same straps as the C60 Trident Pro 300 40mm.

Sources