Seiko Cal. 6318 - 630

The 6318-630 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6318 caliber with 19j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-e194b3223895]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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