Seiko Cal. 5613 - 371

The 5613-371 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-6b206a7db78c]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1974

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