Seiko Cal. 7031 - 367

Seiko 7031-367

The Seiko 7031-367 represents an important milestone in Seiko's 1974 lineup. Powered by the 7031 caliber with 32j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-4c6a728d24d0]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
46mm
Case Thickness
11.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
40m
Dial Color
Cream
Jewels
32j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1974

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