Seiko Cal. 6637 - 757

This Quartz model from 1996 features a 40mm PVD Black case. Powered by the 6637 caliber with 18j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-3c5703b0df54]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1996

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