Seiko Cal. 4431 - 533

This Automatic model from 1970 features a 40mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-b337e5e3eb1b]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

Related Models

• Seiko 4451-132
• Seiko 7146-509
• Seiko 7133-776
• Seiko 0741-800
• Seiko 6320-265
• Seiko 7068-348
• Seiko 6123-772
• Seiko 7119-768
• Seiko 3824-978
• Seiko 5216-107
• Seiko 5644-954
• Seiko 7076-643