Seiko Cal. 6137 - 957

Seiko 6137-957

The 6137-957 is a sought-after Solar piece from Seiko's golden era. Powered by the 6137 caliber with 21j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-b18f295948f1]

Also known as: UFO, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1975

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