Seiko Cal. 6143 - 378

Seiko 6143-378

The 6143-378 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6143 caliber with 22j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-dda16fcc077c]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
40mm
Case Thickness
13.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
90m
Dial Color
Silver
Jewels
22j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1999

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