Seiko Cal. 5639 - 677

The 5639-677 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5639 caliber with 30j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-2b8c9081645b]

Also known as: Pogue, Panda

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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