Seiko Cal. 6377 - 901

This Spring Drive model from 1984 features a 39mm Hardlex-Coated Steel case. Powered by the 6377 caliber with 30j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-fc22eca7bb9e]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1984

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