Seiko Cal. 4547 - 186

Seiko 4547-186

The 4547-186 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4547 caliber with 25j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-f0b35dddf9aa]

Also known as: Tuna, Emperor

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
180m
Dial Color
Cream
Jewels
25j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1975

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