Seiko Cal. 5677 - 204

The 5677-204 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5677 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-7c20b3bf7919]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1984

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