Seiko Cal. 5639 - 877

The Seiko 5639-877 represents an important milestone in Seiko's 1985 lineup. It features a Silver dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-7e897380e93b]

Also known as: Shogun, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1985

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