Seiko Cal. 6318 - 658

Released in 1972, the Cal. 6318 with design code 658 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-41ecd442fbf1]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1972

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