Seiko Cal. 6337 - 115

The 6337-115 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6337 caliber with 22j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-0e60d1b468d0]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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