Seiko Cal. 6347 - 977

Seiko 6347-977

The 6347-977 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-40bc57154e3f]

Also known as: Tuna, Bullhead

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
8.3mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Green
Jewels
34j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1972

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