Seiko Cal. 5639 - 401

Released in 1975, the Cal. 5639 with design code 401 was part of Seiko's domestic market collection. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-a1b121cf4dcd]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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