Seiko Cal. 5639 - 557

Seiko 5639-557

The 5639-557 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5639 caliber with 36j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-590fd762a049]

Also known as: UFO, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
38mm
Case Thickness
15.6mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Champagne
Jewels
36j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1972

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seikata-wm-590fd762a049