Seiko Cal. 6686 - 328

The Seiko 6686-328 represents an important milestone in Seiko's 1965 lineup. Powered by the 6686 caliber with 18j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-42abd722aeb5]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1965

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