Seiko Cal. 3864 - 669

Seiko 3864-669

This Hand-Winding model from 1997 features a 37mm PVD Black case. Powered by the 3864 caliber with 28j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-0a5efd23ceb4]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
37mm
Case Thickness
8.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
130m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1997

Related Models

seikata-wm-0a5efd23ceb4