Seiko Cal. 4551 - 599

The Seiko 4551-599 represents an important milestone in Seiko's 1969 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-d21d1f69a831]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1969

Related Models

• Seiko 6628-884
• Seiko 6283-904
• Seiko 4542-190
• Seiko 6360-341
• Seiko 6381-113
• Seiko 3822-776
• Seiko 0737-498
• Seiko 4437-866
• Seiko 6232-272
• Seiko 5285-615
• Seiko 7037-823
• Seiko 6282-651