Seiko Cal. 6636 - 148

The Seiko 6636-148 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-989b50e0d746]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1988

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