Seiko Cal. 5687 - 747

The Seiko 5687-747 represents an important milestone in Seiko's 1966 lineup. Powered by the 5687 caliber with 20j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-6ab92d0be1f0]

Also known as: Samurai, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1966

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