Seiko Cal. 4520 - 287

Seiko 4520-287

The 4520-287 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ac8462994a0f]

Also known as: Bellmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1978

Related Models

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