Seiko Cal. 4436 - 397

This Automatic model from 1986 features a 45mm Two-Tone case. Powered by the 4436 caliber with 21j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-f68f943e4b89]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1986

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