Seiko Cal. 4510 - 684

The Seiko 4510-684 represents an important milestone in Seiko's 1999 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-5e07ceccdb3c]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1999

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