Watch Almanac
Omega

Seamaster Ploprof 1200M

Ref. 227.32.55.21.03.001 · “Summer Blue”

Case diameter
55 mm
Manufacturer spec
Lug-to-lug
45 mm
Manufacturer spec
Thickness
15.5 mm
Manufacturer spec
Lug width
24 mm
Manufacturer spec

Retail price $16,100 (US, Oct 2026)

Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 45 mm

How the Seamaster Ploprof 1200M wears

Its lugs add only -10 mm to the 55 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 6.25" to 7.5" (15.9–19.1 cm); below 6.25" the lugs start to reach the edge of the wrist.

At 15.5 mm thick it is thicker than 96% of the 124 other dive watches we've measured, so expect it to sit tall on the wrist.

Its 24 mm lug width is unusual, so check strap sizes carefully.

Will the Seamaster Ploprof 1200M fit your wrist?

With a 45 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 mmSnug, lugs near the edge
6.5"51.2 mmIdeal fit
7"55.1 mmIdeal fit
7.5"59.1 mmIdeal fit
8"63 mmWears small

Specifications

Reference
227.32.55.21.03.001
Collection
Seamaster
Status
In production
Case material
O-MEGASTEEL
Crystal
sapphire
Water resistance
1200 m
Bezel
bidirectional rotating sapphire bezel, blue-varnished underside
Dial
blue (Summer Blue)
Strap / bracelet
blue rubber strap, steel pin buckle
Style
Dive

Movement

Caliber
Omega 8912
Type
automatic
Power reserve
60 hours
Accuracy
0/+5 s/day (METAS Master Chronometer)

2 other watches use the Omega 8912

Takes 24 mm straps. See other 24 mm watches and straps.

More Seamaster references

Watches that wear the same size

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

Sources