Seiko Cal. 5687 - 734

The Seiko 5687-734 represents an important milestone in Seiko's 1966 lineup. Powered by the 5687 caliber with 25j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d5db3607106b]

Also known as: Sea Horse, Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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