Seiko Cal. 4442 - 250

This Spring Drive model from 1975 features a 46mm Hardlex-Coated Steel case. With its 20mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-23019c0e3ff8]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1975

Related Models

• Seiko 6254-404
• Seiko 4475-503
• Seiko 5239-722
• Seiko 5298-327
• Seiko 6639-932
• Seiko 4565-479
• Seiko 7037-766
• Seiko 7057-590
• Seiko 5253-976
• Seiko 6284-985
• Seiko 5252-210
• Seiko 6677-132