Seiko Cal. 4536 - 887

Seiko 4536-887

The 4536-887 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4536 caliber with 18j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-a848742cb4b8]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
11.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
150m
Dial Color
Silver
Jewels
18j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1986

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seikata-wm-a848742cb4b8