Seiko Cal. 6318 - 861

The Seiko 6318-861 represents an important milestone in Seiko's 1972 lineup. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-8aa8fedb7f09]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1972

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