Seiko Cal. 6318 - 656

The 6318-656 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6318 caliber with 35j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-5b60b604cfd8]

Also known as: UFO, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1967

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