Seiko Cal. 6631 - 598

Released in 1973, the Cal. 6631 with design code 598 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-b598eccc22cd]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1973

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