Seiko Cal. 5257 - 731

Released in 1988, the Cal. 5257 with design code 731 was part of Seiko's domestic market collection. With its 18mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-ab57cc2b646d]

Also known as: Bellmatic, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1988

Related Models

• Seiko 5238-164
• Seiko 0720-553
• Seiko 4461-498
• Seiko 6183-929
• Seiko 6234-507
• Seiko 6223-936
• Seiko 5650-675
• Seiko 4561-729
• Seiko 5680-601
• Seiko 5239-626
• Seiko 7052-967
• Seiko 7180-649