Seiko Cal. 3840 - 948

Seiko 3840-948

This Automatic model from 1975 features a 45mm Titanium case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-aa8c49d61925]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
45mm
Case Thickness
15.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
28j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1975

Related Models

seikata-wm-aa8c49d61925