Seiko Cal. 6616 - 715

Seiko 6616-715

This Hand-Winding model from 1966 features a 40mm Stainless Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-3a0a6926a76f]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
14.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Green
Jewels
25j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1966

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