Seiko Cal. 6630 - 243

The Seiko 6630-243 represents an important milestone in Seiko's 1965 lineup. Powered by the 6630 caliber with 35j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-da01335d6927]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1965

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