Seiko Cal. 6635 - 481

The Seiko 6635-481 represents an important milestone in Seiko's 1987 lineup. Powered by the 6635 caliber with 33j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-156bc80c4039]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1987

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