Seiko Cal. 4425 - 539

Seiko 4425-539

The Seiko 4425-539 represents an important milestone in Seiko's 1978 lineup. Powered by the 4425 caliber with 20j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-6152c0146061]

Also known as: Monster, Helmet

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
36mm
Case Thickness
11.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1978

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seikata-wm-6152c0146061