Seiko Cal. 5643 - 825

This Spring Drive model from 1989 features a 45mm Stainless Steel case. Powered by the 5643 caliber with 34j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-ad955facd366]

Also known as: Tuna, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1989

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