Seiko Cal. 5630 - 366

The Seiko 5630-366 represents an important milestone in Seiko's 1988 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-572b9cc07535]

Also known as: Helmet, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1988

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