Seiko Cal. 6630 - 940

The Seiko 6630-940 represents an important milestone in Seiko's 1994 lineup. Powered by the 6630 caliber with 36j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-cc1af7de290a]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1994

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