Seiko Cal. 3818 - 561

Seiko 3818-561

This Spring Drive model from 1968 features a 40mm PVD Black case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d8ef5a7bd358]

Also known as: Samurai

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
40mm
Case Thickness
14.0mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1968

Related Models

seikata-wm-d8ef5a7bd358