Seiko Cal. 5654 - 644

The 5654-644 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5654 caliber with 28j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-12176fe5b336]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1986

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