Seiko Cal. 5666 - 102

The Seiko 5666-102 represents an important milestone in Seiko's 1983 lineup. Powered by the 5666 caliber with 31j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-a9ab1d17a598]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1983

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