Seiko Cal. 4431 - 348

This Solar model from 1966 features a 45mm Stainless Steel case. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-b62a95b1ddcc]

Also known as: UFO, Bellmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1966

Related Models

• Seiko 6316-211
• Seiko 6353-381
• Seiko 7137-707
• Seiko 5284-923
• Seiko 6268-437
• Seiko 5264-535
• Seiko 5659-639
• Seiko 6163-742
• Seiko 6394-123
• Seiko 5288-499
• Seiko 4428-118
• Seiko 6689-900