Seiko Cal. 4497 - 631

This Automatic model from 1969 features a 46mm Titanium case. Powered by the 4497 caliber with 35j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-98bc76da357c]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

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