Seiko Cal. 3880 - 621

Seiko 3880-621

The 3880-621 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-91a07a965d71]

Also known as: Tuna, Crown

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
15.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Black
Jewels
30j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1972

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