Seiko Cal. 5691 - 733

Seiko 5691-733

The 5691-733 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-227d560e117d]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
11.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
80m
Dial Color
Navy
Jewels
33j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1972

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