Seiko Cal. 6318 - 344

The Seiko 6318-344 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-b974bca7aa70]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1973

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