Seiko Cal. 6680 - 428

The Seiko 6680-428 represents an important milestone in Seiko's 1991 lineup. Powered by the 6680 caliber with 30j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-3e98e47d308f]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1991

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