Seiko Cal. 6620 - 378

Seiko 6620-378

The 6620-378 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-27a50759ea55]

Also known as: Sea Horse, Flighty

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Silver
Jewels
17j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1976

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