Seiko Cal. 5647 - 352

The Seiko 5647-352 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-42591dfd5243]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1966

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