Hamilton · Frogman
Strap for Hamilton Frogman H77725135
The Frogman Auto 42 Stainless Steel / Black / Bracelet takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width
Your watch with our straps
Calf, Orange
Grand Cavalier Leather Strap Orange
€120
★ 4.9 · 12
1 / 109
Real photos of the strap and the case. No generated images.
What length do I need?
Measure your wrist with a tailor's tape or a piece of string, comfortably snug.
| Wrist circumference | Length (long side / short side) |
|---|---|
| 15.0–16.4 cm | 120 / 70 mm |
| 16.5–17.8 cm | 125 / 75 mm |
| 17.9–19.0 cm | 130 / 80 mm |
| 19.1–20.3 cm | 135 / 85 mm |
| 20.4–21.6 cm | 140 / 85 mm |
| 21.7–22.9 cm | 145 / 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 Hamilton Frogman H77725135
What strap size does the Hamilton Frogman H77725135 take?
The Hamilton Frogman H77725135 needs 20 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Hamilton Frogman H77725135 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 Hamilton Frogman H77725135?
Yes, in 20 mm leather. On a 42 mm case a calf strap works every day; if you want something more, alligator.
Which strap do you recommend for the Hamilton Frogman H77725135?
A 20 mm calf strap, for every day. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Frogman
- Frogman Auto Small Seconds 40 Titanium / Black20 mm
- Frogman Auto 41 Stainless Steel / Black / Rubber20 mm
- Frogman Auto 41 Stainless Steel / Black / Rubber20 mm
- Frogman Auto 41 Stainless Steel / Green / Rubber20 mm
- Frogman Auto 41 Stainless Steel / Black / Bracelet20 mm
- Frogman Auto 42 Stainless Steel / Black / Bracelet20 mm
- Frogman Auto 42 Stainless Steel / Black Rubber20 mm
- Frogman Auto 42 Stainless Steel / Blue / Bracelet20 mm
All Frogman → Hamilton families →
Every Frogman reference with its measured lug width, on watchbands.ai →
More Hamilton in 20 mm
- Khaki Field Quartz 38 Stainless Steel / White / BraceletKhaki Field
- Lady Hamilton Vintage Quartz Red Gold / MOPAmerican Classic
- Lady Hamilton Necklace Rose Gold / MOPLady Hamilton
- Lady Hamilton Vintage Quartz Stainless Steel / MOPLady Hamilton
- Jazzmaster Lady Quartz 34mmJazzmaster
- Jazzmaster Lady Quartz 34mmJazzmaster
For changing the strap
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