Seiko Cal. 5670 - 948

The 5670-948 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-6550a62a8936]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1969

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