Seiko Cal. 6650 - 739

The Seiko 6650-739 represents an important milestone in Seiko's 1968 lineup. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-45e3fcc0073e]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1968

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