Seiko Cal. 6642 - 339

The Seiko 6642-339 represents an important milestone in Seiko's 1993 lineup. Powered by the 6642 caliber with 17j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-1d330ebcec35]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1993

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