Seiko Cal. 5646 - 248

The Seiko 5646-248 represents an important milestone in Seiko's 1971 lineup. It features a Cream dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-d760b1efbd65]

Also known as: Helmet, UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1971

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