Seiko Cal. 6687 - 732

The Seiko 6687-732 represents an important milestone in Seiko's 1981 lineup. Powered by the 6687 caliber with 30j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-c7cdf5f2a6ce]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1981

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