Seiko Cal. 5255 - 437

The Seiko 5255-437 represents an important milestone in Seiko's 1976 lineup. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-98a9cf7fe076]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1976

Related Models

• Seiko 7031-522
• Seiko 4583-479
• Seiko 0716-242
• Seiko 6132-389
• Seiko 5646-573
• Seiko 0730-791
• Seiko 6632-132
• Seiko 6311-144
• Seiko 5699-391
• Seiko 4467-326
• Seiko 6676-739
• Seiko 7171-799