Seiko Cal. 3821 - 443

Seiko 3821-443

The 3821-443 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3821 caliber with 31j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-5b702199f2da]

Also known as: Monster, Navigator

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Black
Jewels
31j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1998

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seikata-wm-5b702199f2da