Seiko Cal. 6639 - 532

The Seiko 6639-532 represents an important milestone in Seiko's 1986 lineup. Powered by the 6639 caliber with 28j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-77fb9ebac011]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1986

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