Speedmaster Reduced

Ref. 3510.50.00

Case diameter: 38.5 mm; Measured in a published review
Lug-to-lug: 44.5 mm; Measured in a published review
Thickness: 12 mm; Measured in a published review
Lug width: 18 mm; Measured in a published review

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 44.5 mm

How the Speedmaster Reduced wears

Its lugs add 6 mm to the 38.5 mm case, close to the 7 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 6.25" to 7.5" (15.9–19.1 cm); below 6.25" the lugs start to reach the edge of the wrist.

At 12 mm thick it is slimmer than 87% of the 47 other chronograph watches we've measured, so it slides under a cuff more easily than most.

Its 18 mm lug width is one of the most common strap sizes; 19 other watches here share it, so aftermarket straps are easy to find.

Will the Speedmaster Reduced fit your wrist?

With a 44.5 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.

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: 3510.50.00
Collection: Speedmaster
Status: Discontinued
Case material: stainless steel
Crystal: hesalite
Water resistance: 30 m
Bezel: fixed black tachymeter bezel
Dial: black
Strap / bracelet: stainless steel bracelet tapering 18 to 16mm
Style: Chronograph, Everyday

Movement

Caliber: Omega 3220
Type: automatic
Power reserve: 40 hours

Takes 18 mm straps. See other 18 mm watches and straps.

More Speedmaster references

Watches that wear the same size

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

Same 18 mm lug width

All 18 mm watches

These take the same straps as the Speedmaster Reduced.