Seiko Cal. 4528 - 623

Seiko 4528-623

The 4528-623 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4528 caliber with 28j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-5d4947c5f5e9]

Also known as: Samurai, Navigator

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
28j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1989

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