Seiko Cal. 3840 - 728

This Quartz model from 1973 features a 42mm Gold-Plated case. With its 18mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-9c693b5d638a]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1973

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