Seiko Cal. 5681 - 240

Released in 1981, the Cal. 5681 with design code 240 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-4471f67f87c2]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1981

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