Seiko Cal. 5638 - 138

This Quartz model from 1982 features a 46mm Two-Tone case. Powered by the 5638 caliber with 31j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-c575dfc7d7d9]

Also known as: Panda, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1982

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