Seiko Cal. 0747 - 307

Seiko 0747-307

The 0747-307 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0747 caliber with 18j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-7dffe8ad4b98]

Also known as: Sumo, Emperor

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
44mm
Case Thickness
12.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Burgundy
Jewels
18j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1993

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seikata-wm-7dffe8ad4b98