Seiko Cal. 4581 - 944

This Spring Drive model from 1966 features a 40mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-6f8db51fbaa8]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1966

Related Models

• Seiko 6346-264
• Seiko 5628-142
• Seiko 6221-285
• Seiko 6625-512
• Seiko 3838-891
• Seiko 4440-458
• Seiko 6281-605
• Seiko 6211-754
• Seiko 5221-978
• Seiko 0740-204
• Seiko 5216-205
• Seiko 6261-693