Seiko Cal. 4427 - 753

This Spring Drive model from 1967 features a 42mm Two-Tone case. It features a Champagne dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-5d19965971c6]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1967

Related Models

• Seiko 4427-425
• Seiko 7174-248
• Seiko 6693-534
• Seiko 5628-776
• Seiko 6326-606
• Seiko 4526-770
• Seiko 5226-141
• Seiko 0763-634
• Seiko 5242-332
• Seiko 5250-162
• Seiko 5635-109
• Seiko 7023-587