Seiko Cal. 6621 - 616

This Spring Drive model from 1968 features a 39mm Two-Tone case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-6e9f60277478]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1968

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