Seiko Cal. 6378 - 909

Seiko 6378-909

This Automatic model from 1991 features a 34mm PVD Black case. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e595b4c03c81]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
34mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Green
Jewels
30j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1991

Related Models

seikata-wm-e595b4c03c81