Seiko Cal. 6231 - 386

This Hand-Winding model from 1968 features a 43mm Stainless Steel case. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-203831a636b7]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1968

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