Omega · Seamaster 120M

Strap for Omega Seamaster 120M TB 378.0885

The Seamaster Polaris Titane / Yellow Gold / Chronograph takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width20 mm
Case diameter42 mm
ReferenceTB 378.0885
FamilySeamaster 120M
MovementOmega caliber 1154 Hours, Minutes, Small seconds | Date | Chronograph
Year1992 - 1994
CaseTitanium, Yellow Gold

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →
Seamaster Polaris Titane / Yellow Gold /  Chronograph — watch

What I'm asked about the Omega Seamaster 120M TB 378.0885

What strap size does the Omega Seamaster 120M TB 378.0885 take?

The Omega Seamaster 120M TB 378.0885 needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Omega Seamaster 120M TB 378.0885 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Omega Seamaster 120M TB 378.0885?

Yes, in 20 mm leather. On a 42 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the Omega Seamaster 120M TB 378.0885?

A 20 mm box calf. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com

Updated on · by Antonio Zichichi