Seiko Cal. 6378 - 844

Seiko 6378-844

The 6378-844 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-b66385c6090d]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
14.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
40m
Dial Color
Black
Jewels
29j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1987

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