Seiko Cal. 6318 - 977

The Seiko 6318-977 represents an important milestone in Seiko's 1973 lineup. Powered by the 6318 caliber with 32j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-dd702dd917b8]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1973

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