Seiko Cal. 6636 - 152

The Seiko 6636-152 represents an important milestone in Seiko's 1998 lineup. Powered by the 6636 caliber with 27j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-afb08736aa9b]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1998

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