Seiko Cal. 5639 - 308

Seiko 5639-308

The 5639-308 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5639 caliber with 36j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-6ac7a71b545e]

Also known as: Panda, Golden Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
40mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
140m
Dial Color
Cream
Jewels
36j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1968

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