Seiko Cal. 5639 - 674

The 5639-674 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-b73f73ecd8e4]

Also known as: Bellmatic, Crown

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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