Seiko Cal. 3813 - 928

The Seiko 3813-928 represents an important milestone in Seiko's 1972 lineup. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-6aeaa765d4c7]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1972

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