Seiko Cal. 6613 - 634

The 6613-634 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c6ec42cebfad]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1973

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