Seiko Cal. 3865 - 478

Seiko 3865-478

The 3865-478 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-4e9750b32502]

Also known as: World Timer

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
10.4mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1983

Related Models

seikata-wm-4e9750b32502