Seiko Cal. 5641 - 721

The 5641-721 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5641 caliber with 19j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-37cc4e4ce748]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1995

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