Boulton Mechanical

Ref. H13519711

Case diameter: 34 mm; Manufacturer spec
Lug-to-lug: 38 mm; Manufacturer spec
Thickness: 11.2 mm; Manufacturer spec
Lug width: 22 mm; Manufacturer spec

Retail price $1,075 (US, Oct 2026)

Your wristWears small

Wrist flat: 55.1 mmLug-to-lug: 38 mm

How the Boulton Mechanical wears

Its lugs add only 4 mm to the 34 mm case, against 7 mm typical across the almanac, so it wears smaller than its diameter suggests.

On our fit model it sits best on wrists from 5.5" to 6.25" (14.0–15.9 cm).

At 11.2 mm thick it is thicker than 96% of the 47 other rectangular watches we've measured, so expect it to sit tall on the wrist.

Its 22 mm lug width is one of the most common strap sizes; 59 other watches here share it, so aftermarket straps are easy to find.

Will the Boulton Mechanical fit your wrist?

With a 38 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.

Wrist	Flat width (est.)	Fit
6"	47.2 mm	Ideal fit
6.5"	51.2 mm	Wears small
7"	55.1 mm	Wears small
7.5"	59.1 mm	Wears small
8"	63 mm	Wears small

Specifications

Reference: H13519711
Collection: American Classic Boulton
Status: In production
Case material: stainless steel
Crystal: sapphire
Water resistance: 50 m
Dial: white
Strap / bracelet: brown cow leather strap, pin buckle
Style: Rectangular, Dress, Everyday

Movement

Caliber: Hamilton H-50
Type: manual
Power reserve: 80 hours

Takes 22 mm straps. See other 22 mm watches and straps.

More American Classic Boulton references

Watches that wear the same size

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

Same 22 mm lug width

All 22 mm watches

These take the same straps as the Boulton Mechanical.

Sources

hamiltonwatch.com/en-us/h13519711-boulton-mechanical.html