Seiko Cal. 6337 - 680

The Seiko 6337-680 represents an important milestone in Seiko's 1994 lineup. Powered by the 6337 caliber with 25j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-9a61b794e05d]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1994

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