Seiko Cal. 6344 - 447

The Seiko 6344-447 represents an important milestone in Seiko's 1982 lineup. Powered by the 6344 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-75d944b29de9]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1982

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