Seiko Cal. 6628 - 612

The 6628-612 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-7ab9dc4f5037]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

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