Hamilton Chrono-Matic H51606640

48.5mm · Stainless Steel · Caliber H-31

Chrono-Matic 50 Auto Chrono Limited Edition Blue

Brand: Hamilton
Full reference: H51606640
Collection: Chrono-Matic
Case diameter: 48.5mm
Case thickness: 16.05mm
Case material: Stainless Steel
Caliber: H-31
Dial color: Blue

Related references — same collection

Shared specifications help discovery; these links do not assert a predecessor or successor relationship.

Hamilton

Chrono-Matic

H51616731

48.5 x 51.5mmStainless Steel

Compare specifications

Specification	H51606640	H51616731
Case diameter	48.5mm	48.5 x 51.5mm
Case material	Stainless Steel	Stainless Steel
Water resistance	—	100m
Movement	—	Automatic
Caliber	H-31	H-31
Power reserve	—	80 hours

Sources & record notes

Displayed specifications follow the most complete source record. Other source records are retained below; conflicting values are not silently combined. WatchBase.

WatchBase ↗ · 2026-09-22 07:47:45 JST

WatchBase · Hamilton H51606640

Original collection: Chrono-Matic

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Corrections and data limitations