Seiko Cal. 6635 - 886

The Seiko 6635-886 represents an important milestone in Seiko's 1991 lineup. Powered by the 6635 caliber with 36j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-45253ea53c21]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1991

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