Seiko Cal. 5640 - 581

This Hand-Winding model from 1977 features a 38mm PVD Black case. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-5fb173840bdc]

Also known as: Pogue, Panda

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1977

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