Seiko Cal. 4598 - 631

Seiko 4598-631

The 4598-631 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a80d4271de16]

Also known as: Turtle

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
21j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1965

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