Seiko Cal. 6637 - 115

Released in 1986, the Cal. 6637 with design code 115 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-518cd4953c6a]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1986

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