Seiko Cal. 6688 - 502

Released in 1965, the Cal. 6688 with design code 502 was part of Seiko's domestic market collection. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-23e6bdcdd8ae]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1965

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