Seiko Cal. 5651 - 770

This Hand-Winding model from 1981 features a 46mm PVD Black case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-6ee7bacc1547]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1981

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