Seiko Cal. 0721 - 643

The 0721-643 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0721 caliber with 25j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-af671960cc89]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1997

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