Seiko Cal. 5657 - 100

The 5657-100 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5657 caliber with 29j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-1b5144440fef]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

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