Seiko Cal. 6620 - 203

Seiko 6620-203

The Seiko 6620-203 represents an important milestone in Seiko's 1978 lineup. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-f8c24db73058]

Also known as: Golden Tuna, Arnie

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
10.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Silver
Jewels
32j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1978

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