Seiko Cal. 7147 - 842

Seiko 7147-842

The 7147-842 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7147 caliber with 29j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-9ffc5f16ab83]

Also known as: Bullhead, Helmet

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
35mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1975

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seikata-wm-9ffc5f16ab83