Seiko Cal. 6638 - 695

Released in 1983, the Cal. 6638 with design code 695 was part of Seiko's domestic market collection. It features a Navy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-389dcd4fe15e]

Also known as: Monster, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1983

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