Seiko Cal. 5690 - 747

The 5690-747 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-3f4b3b3587cd]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1987

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