Seiko Cal. 6228 - 633

Seiko 6228-633

The Seiko 6228-633 represents an important milestone in Seiko's 1978 lineup. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-491b3e1fac1c]

Also known as: Sumo, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
14.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Navy
Jewels
22j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1978

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