Seiko Cal. 6370 - 107

The Seiko 6370-107 represents an important milestone in Seiko's 1965 lineup. Powered by the 6370 caliber with 33j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-ea2775b6a25a]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1965

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