Seiko Cal. 5640 - 803

This Hand-Winding model from 1979 features a 42mm Gold-Plated case. Powered by the 5640 caliber with 32j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-e0c90b63419c]

Also known as: Pogue, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1979

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