Seiko Cal. 4437 - 346

The Seiko 4437-346 represents an important milestone in Seiko's 1991 lineup. Powered by the 4437 caliber with 30j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-9c0d2135759f]

Also known as: Arnie, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1991

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