Seiko Cal. 6642 - 597

The Seiko 6642-597 represents an important milestone in Seiko's 1998 lineup. Powered by the 6642 caliber with 33j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-4e848c3f144c]

Also known as: Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1998

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