Seiko Cal. 3821 - 531

Seiko 3821-531

The 3821-531 is a sought-after Solar piece from Seiko's golden era. Powered by the 3821 caliber with 32j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-725f70390895]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
12.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
190m
Dial Color
Navy
Jewels
32j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1976

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seikata-wm-725f70390895