Seiko Cal. 6690 - 767

The 6690-767 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6690 caliber with 17j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-5bb5bca26c14]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1985

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