Seiko Cal. 6188 - 506

Released in 1978, the Cal. 6188 with design code 506 was part of Seiko's domestic market collection. Powered by the 6188 caliber with 21j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-8eeaf204dfa5]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1978

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