Seiko Cal. 7181 - 548

Seiko 7181-548

The 7181-548 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7181 caliber with 19j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-dadfcb07b89b]

Also known as: Samurai, Bullhead

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
34mm
Case Thickness
10.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1987

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