Seiko Cal. 6623 - 633

Seiko 6623-633

The 6623-633 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-15dcd1d5ebb0]

Also known as: Tuna, Bellmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
9.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
190m
Dial Color
Champagne
Jewels
25j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1981

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