Seiko Cal. 3877 - 837

The Seiko 3877-837 represents an important milestone in Seiko's 1975 lineup. With its 22mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-c528df09732f]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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