Seiko Cal. 6623 - 978

The 6623-978 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-3b2c81676da8]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1970

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