Seiko Cal. 4528 - 739

Seiko 4528-739

The 4528-739 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-44808b141afc]

Also known as: Bullhead, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Black
Jewels
34j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1983

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