Seiko Cal. 5613 - 736

This Spring Drive model from 1972 features a 39mm Two-Tone case. It features a Champagne dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-65e664008d97]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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