Seiko Cal. 4493 - 187

Seiko 4493-187

The 4493-187 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4493 caliber with 27j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-f26721818b4b]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
43mm
Case Thickness
9.4mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
27j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1967

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