Seiko Cal. 6318 - 548

The Seiko 6318-548 represents an important milestone in Seiko's 1973 lineup. Powered by the 6318 caliber with 21j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-7954a52d2cbc]

Also known as: Helmet, UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1973

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