Seiko Cal. 5633 - 690

The Seiko 5633-690 represents an important milestone in Seiko's 1968 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-757ac55e7464]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

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