Seiko Cal. 5641 - 455

The 5641-455 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5641 caliber with 29j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-aa6b43108fd0]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1995

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