Seiko Cal. 5257 - 449

The Seiko 5257-449 represents an important milestone in Seiko's 1987 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-4e38f3ab09a8]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1987

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