Seiko Cal. 4521 - 957

Seiko 4521-957

The 4521-957 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-f5edbb9f1083]

Also known as: Turtle, Arnie

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
14.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Green
Jewels
27j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1973

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