Seiko Cal. 6240 - 657

The Seiko 6240-657 represents an important milestone in Seiko's 1997 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-5cfe4665cf8c]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1997

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