Seiko Cal. 6639 - 434

Seiko 6639-434

The Seiko 6639-434 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-22eae7aeefb3]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
12.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Burgundy
Jewels
31j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1987

Related Models

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