Seiko Cal. 5657 - 804

The 5657-804 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5657 caliber with 25j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-b91d634ee990]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1970

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