Seiko Cal. 3815 - 181

The Seiko 3815-181 represents an important milestone in Seiko's 1966 lineup. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-3c5f7a55dfbd]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1966

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