Seiko Cal. 6690 - 977

The 6690-977 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6690 caliber with 32j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-3c3ad31fbe9f]

Also known as: Silverwave, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1977

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