Seiko Cal. 5633 - 615

Seiko 5633-615

This Spring Drive model from 1977 features a 42mm Titanium case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-f82c3161bf60]

Also known as: Tuna, Rally

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
42mm
Case Thickness
8.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Silver
Jewels
18j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1977

Related Models

seikata-wm-f82c3161bf60