Technical Archive

Hamilton
Boulton H13421811

Hamilton Boulton H13421811: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Boulton Quartz Small Second Stainless Steel / Silver

Technical Specifications

Hamilton H13421811
Reference

H13421811

Movement

ETA caliber 980.163 Hours, Minutes, Small Seconds

Made to Measure

The strap for this watch is made to measure

On the Hamilton Boulton the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.

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FAQ

How do I change the strap on my Hamilton Boulton H13421811?

Strap replacement on the H13421811 is performed via the through-bars (spring pins). Equip yourself with a dedicated tool (spring bar remover) to gently extract the bars from the non-lugged side. Align the new strap lugs with the case, then reinsert the bar until the locking click engages. Proceed with care to avoid scratching the stainless steel case.

How long does a leather strap last on a watch like the Hamilton Boulton H13421811?

Durability depends on daily use and the quality of the tanning process. A calfskin or alligator strap with vegetable tanning, worn 5-6 days per week, maintains structural integrity for 3-4 years. Ageing is part of its charm: patina increases aesthetic appeal. By rotating between multiple straps, durability extends considerably.