Seiko Cal. 6638 - 110

The Seiko 6638-110 represents an important milestone in Seiko's 1982 lineup. Powered by the 6638 caliber with 28j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-a88504046e3f]

Also known as: Bellmatic, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1982

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