Seiko Cal. 6642 - 137

The 6642-137 is a sought-after Solar piece from Seiko's golden era. Powered by the 6642 caliber with 29j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-c9b565242337]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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