Seiko Cal. 6644 - 990

This Solar model from 1981 features a 46mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-23e40b5f612d]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1981

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