Seiko Cal. 5691 - 678

The 5691-678 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-cb3548fd281c]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1969

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