Seiko Cal. 5277 - 730

The Seiko 5277-730 represents an important milestone in Seiko's 1987 lineup. With its 22mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-b8b3e0acc289]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1987

Related Models

• Seiko 0738-553
• Seiko 6181-994
• Seiko 6395-902
• Seiko 7179-250
• Seiko 7053-565
• Seiko 5649-915
• Seiko 7035-890
• Seiko 7189-812
• Seiko 4527-132
• Seiko 0793-538
• Seiko 7148-205
• Seiko 4490-111