Seiko Cal. 3870 - 999

Seiko 3870-999

This Hand-Winding model from 1984 features a 38mm Titanium case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-ae1f8b07840f]

Also known as: Helmet, Crown

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
10.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Green
Jewels
34j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1984

Related Models

seikata-wm-ae1f8b07840f