Seiko Cal. 6340 - 905

The Seiko 6340-905 represents an important milestone in Seiko's 1985 lineup. Powered by the 6340 caliber with 19j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-96a39d70f11c]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1985

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