Seiko Cal. 3831 - 438

Seiko 3831-438

This Kinetic model from 1966 features a 37mm Hardlex-Coated Steel case. Powered by the 3831 caliber with 18j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-b697b68edb7e]

Also known as: Baby Tuna, Emperor

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Black
Jewels
18j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1966

Related Models

seikata-wm-b697b68edb7e