Seiko Cal. 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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