Seiko Cal. 5642 - 571

The 5642-571 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5642 caliber with 29j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-b451c381f0be]

Also known as: Rally, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1986

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