Seiko Cal. 6315 - 957

Seiko 6315-957

The Seiko 6315-957 represents an important milestone in Seiko's 1971 lineup. Powered by the 6315 caliber with 20j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-3871c148ae62]

Also known as: Monster, Helmet

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
13.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
190m
Dial Color
Champagne
Jewels
20j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1971

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