Seiko Cal. 5640 - 132

The Seiko 5640-132 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-cde3790fb253]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1971

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