Seiko Cal. 6647 - 507

The Seiko 6647-507 represents an important milestone in Seiko's 1986 lineup. Powered by the 6647 caliber with 33j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-2b189642bb45]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1986

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