Monarch

Ref. M2639W1A0U

Case diameter: 39 mm; Manufacturer spec
Lug-to-lug: 46.2 mm; Measured in a published review
Thickness: 11.9 mm; Measured in a published review
Lug width: —; Not published

Retail price $5,875 (US, Oct 2026)

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 46.2 mm

How the Monarch wears

Its lugs add 7.2 mm to the 39 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 6.5" to 7.75" (16.5–19.7 cm); below 6.5" the lugs start to reach the edge of the wrist.

At 11.9 mm thick it is thicker than 71% of the 56 other dress watches we've measured, so expect it to sit tall on the wrist.

Will the Monarch fit your wrist?

With a 46.2 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	Snug, lugs near the edge
6.5"	51.2 mm	Ideal fit
7"	55.1 mm	Ideal fit
7.5"	59.1 mm	Ideal fit
8"	63 mm	Wears small

Specifications

Reference: M2639W1A0U
Collection: Monarch
Status: In production
Introduced: 2026
Case material: stainless steel
Crystal: box sapphire
Water resistance: 100 m
Bezel: faceted steel
Dial: dark champagne
Strap / bracelet: steel bracelet with H-shaped links, folding clasp with T-fit
Style: Dress, Everyday

Movement

Caliber: Tudor MT5662-2U
Type: automatic
Power reserve: 65 hours
Frequency: 28,800 vph (4 Hz)
Jewels: 32
Accuracy: -2/+4 s/day (COSC + METAS Master Chronometer)

Watches that wear the same size

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

How the Monarch wears

Will the Monarch fit your wrist?

Specifications

Movement

Watches that wear the same size

Sources