Seiko Cal. 5681 - 830

The Seiko 5681-830 represents an important milestone in Seiko's 1980 lineup. It features a Cream dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-e4b6b5c3eb4f]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1980

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