Seiko Cal. 6371 - 604

Seiko 6371-604

The 6371-604 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-fa4db8031b59]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Black
Jewels
24j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1977

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