Seiko Cal. 6687 - 973

The 6687-973 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-7eb816449ff1]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1971

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