Seiko Cal. 6646 - 342

This Spring Drive model from 1986 features a 43mm PVD Black case. Powered by the 6646 caliber with 18j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-8222f8fc8e49]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1986

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