Seiko Cal. 3840 - 648

Released in 1985, the Cal. 3840 with design code 648 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-53e8d8fa62c1]

Also known as: Panda, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1985

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