Seiko Cal. 6688 - 606

The 6688-606 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-34140c72fc7d]

Also known as: Sumo, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1970

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