Seiko Cal. 3880 - 639

This Quartz model from 1970 features a 44mm Titanium case. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-c75bd43b01ac]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1970

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