Seiko Cal. 4550 - 603

Seiko 4550-603

This Automatic model from 1987 features a 45mm PVD Black case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-764414197f79]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
45mm
Case Thickness
14.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Green
Jewels
25j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1987

Related Models

seikata-wm-764414197f79