Seiko Cal. 0777 - 640

The 0777-640 is a sought-after Solar piece from Seiko's golden era. Powered by the 0777 caliber with 34j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-1210e6a9fc70]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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