Seiko Cal. 5661 - 646

This Hand-Winding model from 1987 features a 44mm PVD Black case. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-27ac2f17e530]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1987

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