Seiko Cal. 6318 - 423

This Hand-Winding model from 1988 features a 41mm PVD Black case. With its 19mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-d657b074825c]

Also known as: Crown, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1988

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