Seiko Cal. 5643 - 876

The Seiko 5643-876 represents an important milestone in Seiko's 1991 lineup. Powered by the 5643 caliber with 32j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-ccf5ee41e1bd]

Also known as: Tuna, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1991

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