Seiko Cal. 6630 - 154

This Hand-Winding model from 1992 features a 37mm PVD Black case. Powered by the 6630 caliber with 34j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-3b909123bc89]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1992

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