Difference between Seamaster, Seamaster De Ville, and Seamaster 600?

B Blcklab666

Wow this is thorough. New to this forum and hoping you can steer me in the right direction regarding the right spring bars.
I have a SM passed from my Grandfather to my dad to me. For years it's had an inexpensive hadley Roma strap from the mall. I want to put on a new strap. Compared to my Planet Ocean I can see 1.8mm bars are too big. Does it use 18mm x 1.5mm? Would a modern "quick release" strap fit in the holes?
I used to think it was a 1960 but pics look more like 1962 I've seen online. I don't have any details from inside the case.
Thanks for any advice.

fskywalker

Most likely your watch needs 18mm springbars. Can you measure the lug to lug size with a ruler?

X350 XJR

1.5-mm is pretty standard for a leather strap. The springbar end size is pretty standard as well.

Quick-release can be nice, however if you don't plan on changing the strap often then they are rather superfluous.

hmmmcamu

INFORMATION to share ...

600 / Geneve
PRINT ... on dial came in 4 versions:

Omega [only]
Omega Seamaster 600
Omega Seamaster 600 Geneve [transitional model]
Omega Geneve

Case ref# 136.011 @ 34.3 mm
Calendar [date]
caliber 611 early 1960's model
caliber 613 later 1960's model with quick set date

Case ref# 135.011 @ 34.3 mm
No Calendar [no date]
caliber 601

CRYSTAL / PLEXI [dome]

Crystal part # - PZ5005 ..... NO date magnifier @ 31.6 mm diameter
acrylic with metal tension ring

Crystal part # - PZ5007 ..... NO date magnifier @ 31.6 mm diameter
acrylic with metal tension ring

Crystal part # - PZ5007L ... WITH date magnifier @ 31.6 mm diameter
acrylic with metal tension ring

Omega Rubber Back GASKET Ref.# 088.0010
Overall diameter Ø31.10mm
Thickness 0.60mm

Vanallard

Do a Google search of Omega Seamaster Deville 711 and you’ll find some info. Looks like a model from the 70s.