Seiko Cal. 6318 - 420

Seiko 6318-420

The Seiko 6318-420 represents an important milestone in Seiko's 1974 lineup. Powered by the 6318 caliber with 32j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-0f065b037e4d]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
32j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1974

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