Seiko Cal. 6370 - 550

This Spring Drive model from 1981 features a 42mm Two-Tone case. Powered by the 6370 caliber with 25j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-864de46a4e1c]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1981

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