Seiko Cal. 3815 - 446

The Seiko 3815-446 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-c2a17e6b5a84]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1977

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