Seiko Cal. 6377 - 728

Seiko 6377-728

The 6377-728 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-7e073ceb6b4f]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
15.4mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Green
Jewels
24j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1985

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