Seiko Cal. 7021 - 478

Seiko 7021-478

The 7021-478 is a sought-after Solar piece from Seiko's golden era. Powered by the 7021 caliber with 24j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-a1c6d92801be]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
8.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
180m
Dial Color
Champagne
Jewels
24j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1970

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