Seiko Cal. 6687 - 715

The Seiko 6687-715 represents an important milestone in Seiko's 1969 lineup. Powered by the 6687 caliber with 36j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-7aa376201cab]

Also known as: Samurai, Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1969

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