Seiko Cal. 7021 - 578

Seiko 7021-578

The 7021-578 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-ea7945045052]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
13.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1975

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