Seiko Cal. 3840 - 511

Seiko 3840-511

This Automatic model from 1979 features a 35mm Two-Tone case. Powered by the 3840 caliber with 23j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-6c4b2a2313bc]

Also known as: Helmet, Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
13.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Black
Jewels
23j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1979

Related Models

seikata-wm-6c4b2a2313bc