Seiko Cal. 6331 - 404

The 6331-404 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-d58fd86bf2b0]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1978

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