Seiko Cal. 6337 - 623

This Hand-Winding model from 1973 features a 40mm PVD Black case. Powered by the 6337 caliber with 24j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-4cf3c84d047c]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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