Seiko Cal. 5679 - 538

The 5679-538 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5679 caliber with 21j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-05af5a6df7e8]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1974

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