Seiko Cal. 6640 - 423

This Automatic model from 1984 features a 35mm Two-Tone case. Powered by the 6640 caliber with 30j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-d7c6b14308e1]

Also known as: Panda, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1984

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