Seiko Cal. 7031 - 413

Seiko 7031-413

The Seiko 7031-413 represents an important milestone in Seiko's 1986 lineup. Powered by the 7031 caliber with 31j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-b591a130bcc9]

Also known as: Bullhead, Helmet

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
42mm
Case Thickness
15.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
White
Jewels
31j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1986

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seikata-wm-b591a130bcc9