Seiko Cal. 5634 - 646

Seiko 5634-646

The 5634-646 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-4f855f35aded]

Also known as: Golden Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
9.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Cream
Jewels
24j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1972

Related Models

seikata-wm-4f855f35aded