Seiko Cal. 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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