Seiko Cal. 3840 - 648

This Hand-Winding model from 1986 features a 37mm Gold-Plated case. Powered by the 3840 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-e32a2f45c56d]

Also known as: Panda, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1986

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