Seiko Cal. 4520 - 346

Seiko 4520-346

The 4520-346 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-0778069ea15a]

Also known as: Tuna, Silverwave

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Navy
Jewels
36j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1997

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