Seiko Cal. 5638 - 981

The 5638-981 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-7dc38176b0f8]

Also known as: Arnie, Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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