Seiko Cal. 3821 - 457

This Spring Drive model from 1969 features a 36mm Hardlex-Coated Steel case. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-46fd73908a9f]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1969

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