Seiko Cal. 6331 - 418

The 6331-418 is a sought-after Kinetic piece from Seiko's golden era. With its 20mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-7d57653345c5]

Also known as: Bullhead, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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