Seiko Cal. 6681 - 677

The Seiko 6681-677 represents an important milestone in Seiko's 1992 lineup. Powered by the 6681 caliber with 31j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-af87b3698e00]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1992

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