Seiko Cal. 6655 - 668

This Spring Drive model from 1974 features a 42mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-74c44582f806]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1974

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