Seiko Cal. 4537 - 137

Seiko 4537-137

The 4537-137 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4537 caliber with 17j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-f46cf13de1ac]

Also known as: Helmet, UFO

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.1mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1993

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