Seiko Cal. 6640 - 827

This Quartz model from 1985 features a 46mm Two-Tone case. Powered by the 6640 caliber with 32j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-054428e43a28]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1985

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