Seiko Cal. 6628 - 406

Released in 1975, the Cal. 6628 with design code 406 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-a4cc7ba24cb1]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1975

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