Seiko Cal. 6687 - 923

Released in 1982, the Cal. 6687 with design code 923 was part of Seiko's domestic market collection. Powered by the 6687 caliber with 31j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-2a2eaf6ec563]

Also known as: World Timer, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1982

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