Seiko Cal. 6641 - 692

The Seiko 6641-692 represents an important milestone in Seiko's 1992 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-660ca923f268]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1992

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