Seiko Cal. 5641 - 632

The Seiko 5641-632 represents an important milestone in Seiko's 1998 lineup. Powered by the 5641 caliber with 21j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-15b2404dfdc6]

Also known as: Pogue, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1998

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