Seiko Cal. 7055 - 738

Seiko 7055-738

The Seiko 7055-738 represents an important milestone in Seiko's 1982 lineup. Powered by the 7055 caliber with 27j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-6ef73d91ae0c]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
39mm
Case Thickness
15.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
27j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1982

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