Hamilton · Timeless Classic

Strap for Thin-O-Matic

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter38 mm
ReferenceH38415731
FamilyTimeless Classic
MovementETA caliber 2824-2 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Timeless Classic H38415731

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Timeless Classic H38415731, seen from the bench

The Hamilton Timeless Classic features the automatic ETA 2824-2 caliber with hour, minute, second and date indication. The movement offers a power reserve of approximately 38 hours and a frequency of 28,800 vibrations per hour. The reference H38415731 represents a classic proposal from the American brand with a consolidated watchmaking tradition.

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