Seiko Cal. 6648 - 231

Seiko 6648-231

This Spring Drive model from 1993 features a 45mm PVD Black case. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-b0088cd7c808]

Also known as: Tuna, Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
45mm
Case Thickness
8.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
130m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1993

Related Models

seikata-wm-b0088cd7c808