Seiko Cal. 5666 - 631

Seiko 5666-631

The 5666-631 is a sought-after Kinetic piece from Seiko's golden era. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-d71a0cd20d73]

Also known as: Panda, World Timer

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
38mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
170m
Dial Color
Champagne
Jewels
33j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1971

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