Seiko Cal. 5685 - 664

The Seiko 5685-664 represents an important milestone in Seiko's 1998 lineup. Powered by the 5685 caliber with 28j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-c954833979d5]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1998

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