Seiko Cal. 5657 - 120

Released in 1968, the Cal. 5657 with design code 120 was part of Seiko's domestic market collection. Powered by the 5657 caliber with 20j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-4a98f290ac03]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1968

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