Seiko Cal. 4423 - 823

This Hand-Winding model from 1971 features a 34mm Gold-Plated case. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-36b1813030d6]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

Related Models

• Seiko 6655-464
• Seiko 5687-373
• Seiko 4448-259
• Seiko 4564-231
• Seiko 5265-662
• Seiko 5250-120
• Seiko 6253-623
• Seiko 4548-243
• Seiko 7034-884
• Seiko 6340-529
• Seiko 6147-993
• Seiko 5262-317