Seiko Cal. 6687 - 605

The Seiko 6687-605 represents an important milestone in Seiko's 1971 lineup. Powered by the 6687 caliber with 34j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-dfe6668b041b]

Also known as: Samurai, Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1971

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