Seiko Cal. 5657 - 120

The 5657-120 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5657 caliber with 30j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-e06488ebd3a0]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1999

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