Seiko Cal. 6218 - 307

The 6218-307 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6218 caliber with 29j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-873cff2af52f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1983

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