Seiko Cal. 5687 - 322

The Seiko 5687-322 represents an important milestone in Seiko's 1990 lineup. Powered by the 5687 caliber with 23j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-6c43d50b56a8]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1990

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