Seiko Cal. 6630 - 377

This Hand-Winding model from 1967 features a 35mm Hardlex-Coated Steel case. It features a Cream dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-5790b3517dae]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1967

Related Models

• Seiko 6328-775
• Seiko 7192-912
• Seiko 6660-390
• Seiko 6612-819
• Seiko 7171-950
• Seiko 5637-983
• Seiko 3894-394
• Seiko 6664-949
• Seiko 6191-903
• Seiko 7146-239
• Seiko 4465-291
• Seiko 3831-827