Seiko Cal. 5659 - 936

This Hand-Winding model from 1978 features a 43mm PVD Black case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-453ed03cb0b2]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1978

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