Seiko Cal. 3821 - 743

The Seiko 3821-743 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-506b6d61653f]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1967

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