Rolex · Sea-Dweller

Strap for Rolex Sea-Dweller 16600 Comex MK1

The Sea-Dweller 16600 Comex Mark 1 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 diameter40 mm
Reference16600 Comex MK1 (aka: Seadweller)
FamilySea-Dweller
MovementRolex caliber 3135 Hours, Minutes, Seconds | Chronometer
Year1992 - 1992
CaseStainless Steel
Spring barØ 2 mm

Recommended spring bar

Spring bars Rolex Sea-Dweller 16600 — 20mm blind lugs

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm · closed lugs

All Rolex spring barsOpen →
Sea-Dweller 16600 Comex Mark 1 — watch

What length do I need?

Measure your wrist with a tailor's tape or a piece of string, comfortably snug.

Wrist circumferenceLength (long side / short side)
15.0–16.4 cm120 / 70 mm
16.5–17.8 cm125 / 75 mm
17.9–19.0 cm130 / 80 mm
19.1–20.3 cm135 / 85 mm
20.4–21.6 cm140 / 85 mm
21.7–22.9 cm145 / 90 mm

The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.

What I'm asked about the Rolex Sea-Dweller 16600 Comex MK1

What strap size does the Rolex Sea-Dweller 16600 Comex MK1 take?

The Rolex Sea-Dweller 16600 Comex MK1 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 Rolex Sea-Dweller 16600 Comex MK1 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 Rolex Sea-Dweller 16600 Comex MK1?

Yes, in 20 mm leather, as long as you don't wear it in the water: leather doesn't like the sea or the pool. For days in the water, rubber. On a 40 mm diver I go for a full-thickness strap, not a thin one.

Which strap do you recommend for the Rolex Sea-Dweller 16600 Comex MK1?

Rubber if you wear it in the water; otherwise a 20 mm calf strap, full thickness. 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.

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

Bespoke straps for Rolex, in the atelier or by video call: casatimilano.com

Updated on · by Antonio Zichichi