Seiko Cal. 3820 - 928

Seiko 3820-928

This Automatic model from 1978 features a 39mm Stainless Steel case. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-a70ebc37bd2a]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Black
Jewels
34j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1978

Related Models

seikata-wm-a70ebc37bd2a