Seiko Cal. 5646 - 137

Released in 1976, the Cal. 5646 with design code 137 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-05dc7ce4dbf8]

Also known as: Goldfeather, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1976

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