Seiko Cal. 6635 - 234

The Seiko 6635-234 represents an important milestone in Seiko's 1980 lineup. Powered by the 6635 caliber with 25j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-9c8cf2c527d3]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1980

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